High severity · published Jun 23, 2026
CVE-2023-54365
Traefik - Denial of Service via HTTP/2 Request Handling
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' technique). A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
Traefik · Traefik
before 2.10.5; 3.0.0-beta1 before 3.0.0-beta4 · source: vendor, NVD
GO
GO · Golang
before 1.20.10; 1.21.0 before 1.21.3 · source: NVD
OA
Openshift AI · Redhat
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-54365
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-54365
Patch
https://github.com/traefik/traefik/security/advisories/GHSA-7v4p-328v-8v5g
Third Party Advisory
https://www.vulncheck.com/advisories/traefik-denial-of-service-via-http-2-request-handling
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-54365
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2491710
Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54365.json
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